Converting USDT to lira: TRC20 or ERC20?

When you want to turn USDT into lira or cash in Istanbul, the first technical question the exchange office asks is: "Which network are you sending on?" Most of the expensive mistakes happen right there, not in the rate. This article explains the difference between TRC20 and ERC20 in plain language, lists the common mistakes and says what you should have agreed in writing before handing over USDT. For the full picture of rules and limits, read the complete guide to USDT in Turkey.

One USDT, several networks

USDT is a single token issued on several blockchains; Ethereum (the ERC20 standard) and Tron (the TRC20 standard) are the two most common, and Tether's official list includes others. Tether stresses that tokens on different networks should be treated equally and interchangeably, so one TRC20 USDT is worth exactly one ERC20 USDT. What differs is the "road": each network has its own addresses, fees and speed, and USDT sent down one road can only be received on that same road.

How the network fee is set

Tron (TRC20): bandwidth and energy

Instead of a "gas price", Tron has two resources. Every transaction consumes "bandwidth" in proportion to its size, and each active account gets a small free daily allowance that refills over 24 hours. A USDT transfer, however, is a smart-contract call and consumes "energy"; energy has no free allowance and is covered either by staked TRX or by burning a small amount of TRX from the sender's balance. The practical consequence: to send TRC20 USDT you need a little TRX in the wallet, or the transaction will not go out.

Ethereum (ERC20): gas, base fee and tip

On Ethereum every transaction consumes "gas", paid in ether. The fee has two parts: a base fee set by the protocol, which moves by at most 12.5% per block depending on how full the previous block was and is burned, and an optional tip for validators. When demand is high, users offer larger tips so their transaction gets into a block sooner. That is why an ERC20 fee in busy hours can be several times the quiet-hour fee, and why you need some ether in the wallet to send.

Speed and confirmations

Tron produces blocks quickly and confirmations usually accumulate within seconds to a minute; on Ethereum, reaching the number of confirmations the recipient wants can take several minutes depending on congestion. The important point is that "sent" is not "final": every office or platform decides how many confirmations it needs before treating a deposit as settled. Until that threshold, no settlement happens, and your timing should allow for it.

Address format: T or 0x

Tron addresses start with the letter T, Ethereum addresses with 0x. That is the simplest way to tell which network the recipient has given you. If the address you received does not match the network selected in your wallet, do not send; ask.

The common mistakes that lose money

• Wrong network: TRC20 USDT to an ERC20 address or the reverse. Usually unrecoverable.
• Wrong address: one transposed character is enough. Take the address from an official channel, compare the first and last few characters, and avoid copying addresses from public chats.
• No fee asset: without TRX on Tron or ether on Ethereum, the transaction is not sent at all or stalls midway.
• Withdrawing from a platform that does not support the destination network: compare the platform's network list with the network the office asked for before withdrawing.
• Memo or tag confusion: some platforms require an extra identifier for deposits to their internal accounts; it is usually not needed for a personal wallet or an office, but if the recipient asks for one, do not send without it.
• Assuming finality before confirmation: do not treat the deal as done until the agreed number of confirmations is reached.

What to agree before handing USDT to an exchange office

1. Network: TRC20 or ERC20, explicitly and in writing.
2. Exact amount: how many USDT you are sending, and whether the rate applies to that amount or to the amount received after the network fee.
3. Who pays the network fee: the sender pays the network fee; make clear what the settlement is based on.
4. Settlement currency and method: cash lira, a deposit to a lira account, or dollars; and the settlement time after network confirmation.
5. Receipt: the transaction ID (TxID) for the USDT handover and a written or bank receipt for the settlement.

For USDT conversion in Istanbul all of these points are fixed before anything is done, and the rate and fee are confirmed before the handover. The reference USDT rate is on today's USDT rate; the firm rate for each deal is quoted separately according to the amount and settlement method.

Turkish platform limits versus in-person conversion

If you withdraw USDT from a Turkish platform, then at the time of writing (October 2026) MASAK Communiqué No. 29 of June 2025 sets daily and monthly limits on stablecoin withdrawals, a 48 hour waiting period (72 hours for a first withdrawal) and a description of at least 20 characters for every transfer. These rules concern platform withdrawals; handing USDT from a personal wallet to an exchange office is not subject to them, though a licensed office also verifies identity and asks about the source of funds for large amounts. The figures and details are in the USDT guide.

A test transfer for large amounts

For any amount whose loss would hurt, send a small amount first, wait for the recipient's confirmation, then send the main amount. A few minutes' delay is a trivial cost next to a transaction that cannot be reversed.